Improved wellj-borer



I s. H. WHITTLESEY.

WELL BORER.

Pate med "Feb. 13, 1866;

I No. 52,632.

d on,

To all whom it may concern 1 's it lmownnt-hatvl'; ESAMUE-L H.

I SEE, 0:6 Appletolnin the county 0t 0 nta-gain ie undeState ci.-Wisconsin, have invented new and'yuscful-Improvement iirWclhBoring In str'uments sand I (lo-hereby declare-that the;

following-is and], clear,;and exact description I. thereofl' which willenableothersskill'eddnthe art to ii-anemia iisethe'saine, reference being i had to the accompanying drawingsyibrining part of this specification, in which-5Q- 2 Figure lisan elevation o f-a device for .borin,s oil and other deep wells made according to my invention,the lower part thereof being in section. Fig. 2 is a top view. Fig". 3 is a bottom view.

. Similar letters of reference indicate like parts;

The object of my invention is toproduce an instrument by means of which a wellruay be bored and reamed rapidly, cheaply, and efficiently, .wi'thout'the use of a sand-pump or a. reciprocating drill. In carrying out inyinvention, I make a conical or an ovoid-pointed burr or'borer, having something of the character of a brace-and-bit iron re'amer. Such burr is provided with three or morecurved cutting-faces, placed at equal. distances around its point, and is connected with the base of a hollow cylinder by a socketioint.; li ts curved cutting-faces take a spiral form, and are continued up to the top of the cyl inder, there'by'forming parallel spiral grooves on the outside of the cylinder. The burnout ters reduce, the-rock below it and along its sides, while the edges-of the spiral grooves act as reamers, the grooves themselves performin g the oifice of. elevator's'and raising the silt or reduced rock nearly to the top-of the'cyliuder, here the grooves are intersected'byopeulogo which admit the silt and reduced rock to the inside of the cylinder, from which they are discharged when it is full by raising the instrument from the Welland removiuglthe "burr or borerl The hollow cylinder may be made long enough to hold all the silt that will accumu-- late while the burr isbeing worn dull in horin g ordinary rock. The burr and cylinder should be made of acornbinatiou of Franklin'ite or crys'tallized'ii'on so called,;for the purpose of I obtaining a'hardand tenacious substance. A

" UNITED STATES "S eci iic'altion forni n part (if-Letter Patent No: -52,632, dated February '13, 186

ICE.

-i wa'ter-ipiperunscentrauypthroughat-he hollow-F cylinder and through: the-burr, 1L anchingfi" nowevenlbeibre reaching its point; so that-a branch-issues in each of thesunlreinfaces-fthat occur between: the cutt'ingfcdges' of the? burr. "uncles-near its pointas the strength required-' to be given to that part will admitrofi- VA 001- umn oi' wnter is allowed todcscend- 'this'tube, (the tube being connected with a hollow drill rod,) and issue attheend Of'the-burryso use clear-it 0t accumulations of reducedroc'kr- The pressure of the-water will cause it to-ascen d a around the cylinder and thence to the top of the well, the heavierfportion being-received into the interior of thecylinder through its lateral openings, and the residue being carried with the current of water-to the surface of the ground. v

A designates a hollow cylinder, whose greatest diameter is the diameter to be given to the bore of the well. Its exterior is providedwith three spiral grooves, which may be angular in cross-section, the base of their angles being at a right'angle to the axis of the cylinder, and consequently formingcuttingcdges J, K,an d

L, which extend from near the'upper endofthe cylinder down'to its feet.

. A square socket is formed in the foot of the cylinder to receive the square neck E of a borer or burr, D, of ovoid form, fromwhose end arise three curved cutting-edges, I,seenv most plainly in "Fig. 3, which, afterdescii'bing about one-third of a circle on the sides of the borer are continued upward to meet the spiral edges-J K L, respectively, with which they form continuous spiral cuttingedges. The borer or burr Dhas an axial-perforation from the too of the neck E 'down' nearly to its point, when it branches off into.

. several small passages, F, which opennear, its

point just within the angles made by the cutting-edges I. This axial perforation communicates, when the borer D and cylinder Aware joined together, .with ..:a small. water, ipe or' tube, B, which runs through the center of cylinder A and is carried up through itsneck H, so that it may also communicate with the usual hollow drill-rod that extends to the surface oi" the ground. The borer or hurr D is firmly fixed to cylinder A by screws or otherv suite!- ble fastenitigs. A q

In operating this instrument the borer cuts way down tin-0:121 the flock 1);,- heing rcvolvcd, the rock bei-z igf abradel-l:bythecntters I and reduced folthe Stine pfifi'nc sand? 01" silt,

in which sum: it can 'be'easily' te'mo'ved by the i iyreesmepfia col unnrof'water, whieh,-as beforeget down into the wel'lfthreugh the ul-channels F with sulfi'cicnt pressure n11 upward current outside of the A n'nk'l' outsid e fthe usual drill- 0d of the well; The currentwill pass ythe grnovesfornied around the cylinfilltfilillfl epe'nings" innigradu elly'fill the fannular space i n'g,the cylhulcv aroundthe inner tube, 113,, \vhile'flielight'er pm'ticns will ascend wit"h the water to the ml) of the well In this "way thebot tom ntfthc bore will bekeptelear for the action of the boring-mp1,whichconsequently need not be "taken ont of thewell in -m'dcr to apply the sand-pinup, as is now cusnnd," when? i t reaches fthe lateral openings I temary. The cutting=edges J K L of the ,cyl-fl inder not as reamera while the boring-tool is deepening the .well, and therefore it is 'not'nec ess-(n'y tore-move said tool in order to rena out vthe bore, asis the practice when usin'g i dl nary dllllillgtQQlS. l a 1 l I claim as new and desire to secure by Letters Patent- I. .The bark or borer l), conetrncte'd, sub-- stantially as above described, with curvedeut ting-edges I, which spring fi'om the'poinl; 'ofl thjnstrnment. .2. Iu'combination with thebu'nr o1 borer D,

the hollow cylinder Arhaving spiral groq'ves which are continuations of the grooves hem tween the cntters'I of the burr-or borer and which terminate at openings G at the top. (if l he cylinder, and hnvinga-lso spiral reaming edges J K Lysnhstantmlly as aboye described. i

\Yitnes'Ses:

' -0. L. FAY, I

H. H. HI-MEBAUGII. 

